Microstructure and phase composition of Hg-1223 bulk phase superconductors

Gerhard Gritzner; Karl Kellner; Kazimierz Przybylski

doi:10.1016/s0921-4534(98)00386-4

Microstructure and phase composition of Hg-1223 bulk phase superconductors

Gerhard Gritzner, Karl Kellner, Kazimierz Przybylski

Institute of Chemical Technology of Inorganic Materials

Research output: Contribution to journal › Article › peer-review

Abstract

The superconducting HgPb0.4Ba2Ca2Cu3Oy 1223 phase was prepared by a mixed oxide technique and by solid state reactions. The resistance measurements yielded Tc(0)-values of 126 K with transition widths of 4 K. X-ray diffraction confirmed the presence of the superconducting 1223 phase. Scanning electron microscopy in combination with EDX showed that besides the superconducting crystallites, BaCuO2, CaO, CuO, BaPbO3 as well as BaCO3 and BaO and CaO mixtures and CaHgO2 were present as secondary phases. High-resolution optical microscopy in normal and polarized light yielded information on the porosity and the distribution of the superconducting and the secondary phases

Original language	English
Pages (from-to)	99 - 104
Number of pages	6
Journal	Physica C: Superconductivity
Volume	307
DOIs	https://doi.org/10.1016/s0921-4534(98)00386-4
Publication status	Published - Jan 1998

Fields of science

104005 Electrochemistry
104006 Solid state chemistry
104014 Surface chemistry
104017 Physical chemistry
105113 Crystallography
105116 Mineralogy
503013 Subject didactics of natural sciences
204 Chemical Process Engineering
204001 Inorganic chemical technology
205016 Materials testing
210006 Nanotechnology
211104 Metallurgy

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10.1016/s0921-4534(98)00386-4

Cite this

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title = "Microstructure and phase composition of Hg-1223 bulk phase superconductors",

abstract = "The superconducting HgPb0.4Ba2Ca2Cu3Oy 1223 phase was prepared by a mixed oxide technique and by solid state reactions. The resistance measurements yielded Tc(0)-values of 126 K with transition widths of 4 K. X-ray diffraction confirmed the presence of the superconducting 1223 phase. Scanning electron microscopy in combination with EDX showed that besides the superconducting crystallites, BaCuO2, CaO, CuO, BaPbO3 as well as BaCO3 and BaO and CaO mixtures and CaHgO2 were present as secondary phases. High-resolution optical microscopy in normal and polarized light yielded information on the porosity and the distribution of the superconducting and the secondary phases",

author = "Gerhard Gritzner and Karl Kellner and Kazimierz Przybylski",

year = "1998",

month = jan,

doi = "10.1016/s0921-4534(98)00386-4",

language = "English",

volume = "307",

pages = "99 -- 104",

journal = "Physica C: Superconductivity",

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T1 - Microstructure and phase composition of Hg-1223 bulk phase superconductors

AU - Gritzner, Gerhard

AU - Kellner, Karl

AU - Przybylski, Kazimierz

PY - 1998/1

Y1 - 1998/1

N2 - The superconducting HgPb0.4Ba2Ca2Cu3Oy 1223 phase was prepared by a mixed oxide technique and by solid state reactions. The resistance measurements yielded Tc(0)-values of 126 K with transition widths of 4 K. X-ray diffraction confirmed the presence of the superconducting 1223 phase. Scanning electron microscopy in combination with EDX showed that besides the superconducting crystallites, BaCuO2, CaO, CuO, BaPbO3 as well as BaCO3 and BaO and CaO mixtures and CaHgO2 were present as secondary phases. High-resolution optical microscopy in normal and polarized light yielded information on the porosity and the distribution of the superconducting and the secondary phases

AB - The superconducting HgPb0.4Ba2Ca2Cu3Oy 1223 phase was prepared by a mixed oxide technique and by solid state reactions. The resistance measurements yielded Tc(0)-values of 126 K with transition widths of 4 K. X-ray diffraction confirmed the presence of the superconducting 1223 phase. Scanning electron microscopy in combination with EDX showed that besides the superconducting crystallites, BaCuO2, CaO, CuO, BaPbO3 as well as BaCO3 and BaO and CaO mixtures and CaHgO2 were present as secondary phases. High-resolution optical microscopy in normal and polarized light yielded information on the porosity and the distribution of the superconducting and the secondary phases

U2 - 10.1016/s0921-4534(98)00386-4

DO - 10.1016/s0921-4534(98)00386-4

M3 - Article

SN - 0921-4534

VL - 307

SP - 99

EP - 104

JO - Physica C: Superconductivity

JF - Physica C: Superconductivity

ER -